mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-26 09:45:06 +02:00
90a211bf47
Stop converting between CSS and device pixels as part of rendering - the display list should be as simple as possible, so convert to DevicePixels once when constructing the display list.
26 lines
856 B
C++
26 lines
856 B
C++
/*
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* Copyright (c) 2025, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Painting/ScrollState.h>
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namespace Web::Painting {
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ScrollStateSnapshot ScrollStateSnapshot::create(Vector<NonnullRefPtr<ScrollFrame>> const& scroll_frames, double device_pixels_per_css_pixel)
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{
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ScrollStateSnapshot snapshot;
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auto scale = static_cast<float>(device_pixels_per_css_pixel);
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snapshot.m_css_offsets.ensure_capacity(scroll_frames.size());
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snapshot.m_device_offsets.ensure_capacity(scroll_frames.size());
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for (auto const& scroll_frame : scroll_frames) {
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auto const& offset = scroll_frame->m_own_offset;
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snapshot.m_css_offsets.unchecked_append(offset);
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snapshot.m_device_offsets.unchecked_append(offset.to_type<float>() * scale);
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}
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return snapshot;
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}
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}
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